| chapterhouse | (noun) a house used as a residence by a chapter of a fraternity | Synonyms: frat house, fraternity house |
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| (noun) a building attached to a monastery or cathedral; used as a meeting place for the chapter | - |
| cheap | (adjective) relatively low in price or charging low prices | Synonyms: inexpensive |
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| (adjective) of very poor quality; flimsy | Synonyms: bum, cheesy, chintzy, crummy, punk, sleazy, tinny |
| (adjective) embarrassingly stingy | Synonyms: chinchy, chintzy |
| (adjective) tastelessly showy | Synonyms: brassy, flash, flashy, garish, gaudy, gimcrack, loud, meretricious, tacky, tatty, tawdry, trashy |
| cheapen | (verb) lower the grade of something; reduce its worth | Synonyms: degrade |
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| cheapjack | (adjective) made of inferior workmanship and materials | Synonyms: shoddy, tawdry |
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| (noun) a peddler of inferior goods | - |
| cheaply | (adverb) with little expenditure of money | Synonyms: inexpensively |
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| (adverb) in a cheap manner | Synonyms: inexpensively, tattily |
| (adverb) in a stingy manner | Synonyms: chintzily, stingily |
| cheapness | (noun) a price below the standard price | Synonyms: bargain rate, cut price, cut rate |
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| (noun) tastelessness by virtue of being cheap and vulgar | Synonyms: sleaze, tackiness, tat |
| cheapskate | (noun) a miserly person | Synonyms: tightwad |
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| chemotherapeutic | (adjective) of or relating to chemotherapy | Synonyms: chemotherapeutical |
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| chemotherapeutical | (adjective) of or relating to chemotherapy | Synonyms: chemotherapeutic |
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| chemotherapy | (noun) the use of chemical agents to treat or control disease (or mental illness) | - |
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| chincapin | (noun) small nut of either of two small chestnut trees of the southern United States; resembles a hazelnut | Synonyms: chinkapin, chinquapin |
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| chinkapin | (noun) small nut of either of two small chestnut trees of the southern United States; resembles a hazelnut | Synonyms: chincapin, chinquapin |
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| chinquapin | (noun) small nut of either of two small chestnut trees of the southern United States; resembles a hazelnut | Synonyms: chincapin, chinkapin |
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| (noun) shrubby chestnut tree of southeastern United States having small edible nuts | Synonyms: Allegheny chinkapin, Castanea pumila, dwarf chestnut, eastern chinquapin |
| (noun) shrubby tree closely related to the Allegheny chinkapin but with larger leaves; southern midwestern United States | Synonyms: Castanea ozarkensis, Ozark chinkapin, Ozark chinquapin |
| chirography | (noun) beautiful handwriting | Synonyms: calligraphy, penmanship |
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| cholangiography | (noun) roentgenographic examination of the bile ducts after a contrast medium has been injected | - |
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| choreograph | (verb) plan and oversee the development and details of | - |
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| (verb) compose a sequence of dance steps, often to music | - |
| choreographer | (noun) someone who creates new dances | - |
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| choreographic | (adjective) of or concerned with choreography | - |
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| choreography | (noun) a show involving artistic dancing | Synonyms: stage dancing |
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| (noun) the representation of dancing by symbols as music is represented by notes | - |
| (noun) a notation used by choreographers | - |
| chromatograph | (noun) equipment that enables a sophisticated separation, e.g. gas chromatographic or liquid chromatographic separation. | - |
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| chromatographic | (adjective) of or relating to chromatography | Synonyms: chromatographical |
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| chromatographical | (adjective) of or relating to chromatography | Synonyms: chromatographic |
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| chromatographically | (adverb) by means of a chromatographic process | - |
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| chromatography | (noun) a process used for separating mixtures by virtue of differences in absorbency | - |
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| chromolithograph | (noun) a print made by chromolithography. | - |
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| chromolithography | (noun) single- or multi-color lithography | - |
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| chronograph | (noun) an accurate timer for recording time | - |
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| chrysotherapy | (noun) the use of chemicals containing gold for treating diseases (such as rheumatoid arthritis) | - |
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| cinematographer | (noun) a photographer who operates a movie camera | Synonyms: camera operator, cameraman |
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| cinematography | (noun) the act of making a film | Synonyms: filming, motion-picture photography |
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| cityscape | (noun) painting depicting a city or urban area | - |
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| (noun) a viewpoint toward a city or other heavily populated area | - |
| clap | (noun) a sudden very loud noise | Synonyms: bam, bang, blast, eruption |
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| (noun) a sharp abrupt noise as if two objects hit together; may be repeated | Synonyms: clack |
| (noun) a common venereal disease caused by the bacterium Neisseria gonorrhoeae; symptoms are painful urination and pain around the urethra | Synonyms: gonorrhea, gonorrhoea |
| (verb) clap one's hands together | Synonyms: spat |
| (verb) clap one's hands or shout after performances to indicate approval | Synonyms: acclaim, applaud, spat |
| (verb) strike together so as to produce a sharp percussive noise | - |
| (verb) strike with the flat of the hand; usually in a friendly way, as in encouragement or greeting | - |
| (verb) put quickly or forcibly | - |
| (verb) strike the air in flight | - |
| (verb) cause to strike the air in flight | - |
| clapboard | (noun) a long thin board with one edge thicker than the other; used as siding by lapping one board over the board below | Synonyms: weatherboard, weatherboarding |
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| (verb) cover with clapboards | - |
| clapper | (noun) metal striker that hangs inside a bell and makes a sound by hitting the side | Synonyms: tongue |
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| (noun) a mobile mass of muscular tissue covered with mucous membrane and located in the oral cavity | Synonyms: glossa, lingua, tongue |
| (noun) someone who applauds | Synonyms: applauder |
| clapperboard | (noun) photographic equipment used to synchronize sound and motion picture; boards held in front of a movie camera are banged together | - |
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| clapperclaw | (verb) use foul or abusive language towards | Synonyms: abuse, blackguard, shout |
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| (verb) claw with the nails | - |
| clappers | (noun) (used in the plural) a percussion instrument consisting of a pair of hollow pieces of wood or bone (usually held between the thumb and fingers) that are made to click together (as by Spanish dancers) in rhythm with the dance | Synonyms: bones, castanets, finger cymbals |
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| clapping | (noun) a demonstration of approval by clapping the hands together | Synonyms: applause, hand clapping |
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| claptrap | (noun) pompous or pretentious talk or writing | Synonyms: blah, bombast, fustian, rant |
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| clozapine | (noun) an antipsychotic drug (trade name Clozaril) used as a sedative and for treatment-resistant schizophrenia; known to have few side effects | Synonyms: Clozaril |
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| coapt | (verb) fit tightly and fasten | - |
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| (verb) cause to adhere | Synonyms: conglutinate |
| collapsable | (adjective) capable of collapsing or being collapsed | Synonyms: collapsible |
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| collapse | (noun) the act of throwing yourself down; collapse; sink | Synonyms: flop |
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| (noun) a natural event caused by something suddenly falling down or caving in | - |
| (noun) a sudden large decline of business or the prices of stocks (especially one that causes additional failures) | Synonyms: crash |
| (noun) an abrupt failure of function or complete physical exhaustion | Synonyms: prostration |
| (verb) collapse due to fatigue, an illness, or a sudden attack | Synonyms: break down |
| (verb) lose significance, effectiveness, or value | - |
| (verb) suffer a nervous breakdown | Synonyms: break up, crack, crack up, crock up |
| (verb) break down, literally or metaphorically | Synonyms: break, cave in, fall in, founder, give, give way |
| (verb) fold or close up | - |
| (verb) fall apart | Synonyms: break down, crumble, crumple, tumble |
| (verb) cause to burst | Synonyms: burst |
| collapsible | (adjective) capable of collapsing or being collapsed | Synonyms: collapsable |
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| contraption | (noun) a device or control that is very useful for a particular job | Synonyms: appliance, contrivance, convenience, gadget, gismo, gizmo, widget |
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| contrapuntal | (adjective) having two or more independent but harmonically related melodic parts sounding together | Synonyms: polyphonic |
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| (adjective) relating to or characteristic of or according to the rules of counterpoint | - |
| contrapuntist | (noun) a composer who specializes in counterpoint | - |
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| cosmographer | (noun) a scientist knowledgeable about cosmography | Synonyms: cosmographist |
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| cosmographist | (noun) a scientist knowledgeable about cosmography | Synonyms: cosmographer |
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| cosmography | (noun) a representation of the earth or the heavens | - |
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| (noun) the science that maps the general features of the universe; describes both heaven and earth (but without encroaching on geography or astronomy) | - |
| crabapple | (noun) small sour apple; suitable for preserving | Synonyms: crab apple |
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| (noun) any of numerous wild apple trees usually with small acidic fruit | Synonyms: crab apple, wild apple |
| (noun) any of numerous varieties of crab apples cultivated for their small acidic (usually bright red) fruit used for preserves or as ornamentals for their blossoms | Synonyms: crab apple, cultivated crab apple |
| crap | (noun) Obscene word for unacceptable behavior | Synonyms: bull, bullshit, dogshit, horseshit, Irish bull, shit |
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| (noun) obscene terms for feces | Synonyms: dirt, poop, shit, shite, turd |
| (verb) have a bowel movement | Synonyms: ca-ca, defecate, make, shit, stool, take a crap, take a shit |
| crapaud | (noun) large toothed frog of South America and Central America resembling the bullfrog | Synonyms: Leptodactylus pentadactylus, South American bullfrog |
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| crape | (noun) a soft thin light fabric with a crinkled surface | Synonyms: crepe |
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| (noun) small very thin pancake | Synonyms: crepe, French pancake |
| (verb) curl tightly | Synonyms: crimp, frizz, frizzle, kink, kink up |
| (verb) cover or drape with crape | Synonyms: crepe |
| crapette | (noun) solitaire with two players using separate packs | Synonyms: Russian bank |
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| crapper | (noun) a plumbing fixture for defecation and urination | Synonyms: can, commode, pot, potty, stool, throne, toilet |
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| crappie | (noun) small sunfishes of central United States rivers | - |
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| (noun) small sunfishes of the genus Pomoxis of central United States rivers | - |
| crappy | (adjective) very bad | Synonyms: icky, lousy, rotten, shitty, stinking, stinky |
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| craps | (noun) a gambling game played with two dice; a first throw of 7 or 11 wins and a first throw of 2, 3, or 12 loses and a first throw of any other number must be repeated to win before a 7 is thrown, which loses the bet and the dice | - |
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| (noun) expressions used when two dice are thrown and both come up showing one spot | Synonyms: snake eyes |
| crapshoot | (noun) playing craps | Synonyms: crap game, crap shooting |
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| (noun) a risky and uncertain venture | - |
| crapshooter | (noun) a gambler who plays the game of craps | - |
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| crapulence | (noun) the act of drinking alcoholic beverages to excess | Synonyms: boozing, drink, drinking, drunkenness |
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| crapulent | (adjective) suffering from excessive eating or drinking | Synonyms: crapulous |
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| crapulous | (adjective) given to gross intemperance in eating or drinking | - |
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| (adjective) suffering from excessive eating or drinking | Synonyms: crapulent |
| crotaphion | (noun) the tip of the greater wing of the sphenoid bone | - |
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| cryptograph | (noun) a device for deciphering codes and ciphers | - |
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| (noun) a piece of writing in code or cipher | Synonyms: cryptogram, secret writing |
| (noun) a secret method of writing | Synonyms: cipher, cypher, secret code |
| cryptographer | (noun) decoder skilled in the analysis of codes and cryptograms | Synonyms: cryptanalyst, cryptologist |
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| cryptographic | (adjective) of or relating to cryptanalysis | Synonyms: cryptanalytic, cryptographical, cryptologic, cryptological |
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| cryptographical | (adjective) of or relating to cryptanalysis | Synonyms: cryptanalytic, cryptographic, cryptologic, cryptological |
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| cryptographically | (adverb) in a cryptographic manner | - |
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| cryptography | (noun) act of writing in code or cipher | Synonyms: coding, secret writing, steganography |
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| (noun) the science of analyzing and deciphering codes and ciphers and cryptograms | Synonyms: cryptanalysis, cryptanalytics, cryptology |
| crystallographer | (noun) a specialist in crystallography | - |
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| crystallography | (noun) the branch of science that studies the formation and structure of crystals | - |
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| cyclobenzaprine | (noun) muscle relaxant (trade name Flexeril) used for muscle spasms or acute injury | Synonyms: Flexeril |
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| cymograph | (noun) scientific instrument consisting of a rotating drum holding paper on which a stylus traces a continuous record (as of breathing or blood pressure) | Synonyms: kymograph |
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| daphne | (noun) any of several ornamental shrubs with shiny mostly evergreen leaves and clusters of small bell-shaped flowers | - |
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| daphnia | (noun) minute freshwater crustacean having a round body enclosed in a transparent shell; moves about like a flea by means of hairy branched antennae | Synonyms: water flea |
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| dapper | (adjective) marked by up-to-dateness in dress and manners | Synonyms: dashing, jaunty, natty, raffish, rakish, snappy, spiffy, spruce |
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| dapperness | (noun) stylishness as evidenced by a smart appearance | Synonyms: jauntiness, nattiness, rakishness |
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| dapple | (noun) a small contrasting part of something | Synonyms: fleck, maculation, patch, speckle, spot |
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| (verb) colour with streaks or blotches of different shades | Synonyms: cloud, mottle |
| dappled | (adjective) having spots or patches of color | Synonyms: mottled |
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| dapsone | (noun) antibacterial drug used to treat leprosy and some kinds of skin diseases | - |
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| deathtrap | (noun) any structure that is very unsafe; where people are likely to be killed | - |
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| decapitate | (verb) cut the head of | Synonyms: behead, decollate |
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| decapitated | (adjective) having had the head cut off | Synonyms: beheaded |
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| decapitation | (noun) killing by cutting off the head | Synonyms: beheading |
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| (noun) execution by cutting off the victim's head | Synonyms: beheading |
| decapod | (noun) crustaceans characteristically having five pairs of locomotor appendages each joined to a segment of the thorax | Synonyms: decapod crustacean |
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| (noun) cephalopods having eight short tentacles plus two long ones | - |
| demographer | (noun) a scientist who studies the growth and density of populations and their vital statistics | Synonyms: demographist, population scientist |
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| demographic | (adjective) of or relating to demography | - |
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| (noun) a statistic characterizing human populations (or segments of human populations broken down by age or sex or income etc.) | - |
| demographist | (noun) a scientist who studies the growth and density of populations and their vital statistics | Synonyms: demographer, population scientist |
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| demography | (noun) the branch of sociology that studies the characteristics of human populations | Synonyms: human ecology |
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| dewlap | (noun) a hanging fold of loose skin on an elderly person's neck | - |
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| diapason | (noun) either of the two main stops on a pipe organ | Synonyms: diapason stop |
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| diapedesis | (noun) passage of blood cells (especially white blood cells) through intact capillary walls and into the surrounding tissue | - |
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| diapensia | (noun) any boreal low-growing evergreen plant of the genus Diapensia | - |
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| diaper | (noun) garment consisting of a folded cloth drawn up between the legs and fastened at the waist; worn by infants to catch excrement | Synonyms: napkin, nappy |
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| (noun) a fabric (usually cotton or linen) with a distinctive woven pattern of small repeated figures | - |
| diaphanoscope | (noun) An instrument for illuminating the interior of a cavity to determine the translucency of its walls. | - |
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| diaphanous | (adjective) so thin as to transmit light | Synonyms: cobwebby, filmy, gauze-like, gauzy, gossamer, see-through, sheer, transparent, vaporous, vapourous |
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| diapheromera | (noun) a variety of stick insect | Synonyms: Diapheromera femorata |
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| diaphone | (noun) a foghorn that makes a signal consisting of two tones | - |
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